ASAIR AFM07 Series Instruction Manual

AFM07 Series Instruction Manual
AFM07 Series Instruction Manual
Gas Mass Flow Meters

Integrated Mass Flow and Temperature Measurement

Good repeatability

Supports multiple gas measurements

Standard Modbus RTU communication

2 NPN open collector outputs (for upper and lower limit alarms)

1~5V linear voltage output
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LCD screen display

9~24V DC power supply
Scope of Application
AFM07 series is suitable for air, nitrogen, argon, carbon dioxide, oxygen and other dry and clean non-
corrosive gases (except flammable and explosive gases) mass flow monitoring, has been widely used in
universities and colleges of scientific research, fire protection, environmental monitoring, tobacco, intelligent
agriculture, food, medicine and other industries.
1. Appearance structure and interface definition
1.1 Appearance Structure
Figure 2 shows the external structure of the AFM07 series, including the sensor duct and the working
interface. The working interface includes LCD display and operation keys, and the LCD displays the
flowmeter Modbus communication address, gas temperature, cumulative flow rate and instantaneous flow rate.
The buttons include three keys: up key, down key and set key, and lights 1 and 2 are the upper limit alarm
light and lower limit alarm light respectively. The sensor duct is below the working interface and includes the
air inlet and outlet.
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Figure 1. AFM07 series product appearance
November 2023
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